<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
	<title>max</title>
	<script type="text/javascript">
	    //max
	    function max (arr) {
	    	var compare=arr[0];
	    	for(var i=1 ; i<arr.length ;i++){
                if(compare<arr[i]){
                   compare=arr[i];
                }
	    	}
	        return compare;
	    }
	    arr = [1,56,23,6,43,87,3,5,55];
	    alert(max(arr));
	</script>
</head>
<body>
	
</body>
</html>